Home / 210,262.08-315,393.12-52,490.28

Finding the Fourth Proportional to 210,262.08, 315,393.12 and 52,490.28

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Solution

The fourth proportional to 210,262.08, 315,393.12 and 52,490.28 is: 78,735.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,262.08 : 315,393.12 = 52,490.28 : x
  2. Step 2: Convert to fraction form
    210,262.08/315,393.12 = 52,490.28/x
  3. Step 3: Cross multiply
    210,262.08x = 315,393.12 × 52,490.28
  4. Step 4: Simplify right side
    210,262.08x = 16,555,073,178.87
  5. Step 5: Solve for x
    x = 16,555,073,178.87/210,262.08
  6. Step 6: Final answer
    x = 78,735.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.